Red steel paper insulating paper is a kind of soft composite material. Insulation class: B class; temperature resistance: 130 . Appearance: Even surface, no fluff, and no defects such as bubbles, wrinkles and blemishes Uses: Red steel paper combines the good insulation properties of wood pulp insulation paper and the good dielectric strength of polyester film. It is widely used in electrical equipment, and is suitable for slot insulation, turn-to-turn insulation and gasket insulation of B-class motors.